Illustration of Port Authority K100
Port Authority K100

This chart refers to the shirt's dimensions laid flat. Measure one of your current shirts along the same A B & C lines to find which size would fit you best.

Please note that these measurements are averaged approximations of each size. Minor variances may be present.

Inches
XS SM MD LG XL 2X 3X 4X 5X 6X
A 17.75 19 20.75 22 23.50 25.50 26.50 29 30.75 33.25
B 27 27.75 29 29.50 30.25 31.25 32 33.25 34 34
C 17.75 19 20.25 21.25 24 25.25 26.75 29 30.75 32
Centimeters
XS SM MD LG XL 2X 3X 4X 5X 6X
A 45 48.50 53 55.50 60 64.50 67.50 74 78 84
B 68.5 70.5 73.5 74.5 77 79.50 81.50 84.50 86.50 86
C 45 48 51 54 61 64.5 68 73.5 78 81.5